java远程下载文件到本地

public class getFile {public static void downloadFile(String remoteFilePath, String localFilePath){URL urlfile = null;HttpURLConnection httpUrl = null;BufferedInputStream bis = null;BufferedOutputStream bos = null;File f = new File(localFilePath);try{urlfile = new URL(remoteFilePath);httpUrl = (HttpURLConnection)urlfile.openConnection();httpUrl.connect();bis = new BufferedInputStream(httpUrl.getInputStream());bos = new BufferedOutputStream(new FileOutputStream(f));int len = 2048;byte[] b = new byte[len];while ((len = bis.read(b)) != -1){bos.write(b, 0, len);}System.out.println("上传成功");bos.flush();bis.close();httpUrl.disconnect();}catch (Exception e){e.printStackTrace();}finally{try{bis.close();bos.close();}catch (IOException e){e.printStackTrace();}}}//    public static void main(String[] args) {
//        String remoteFilePath="http://172.18.49.196:9088/easkLogAnalyse/upload/IOS_AUDIT_LOG_20170207115053_18143481737.log";
//        String localFilePath="F:/createFile/createFile/IOS_AUDIT_LOG_20170207115053_18143481737.log";
//        downloadFile(remoteFilePath,localFilePath);
//    }
}

java远程下载文件传送给前端：

    public static void getFile(String remoteFilePath, HttpServletResponse response){URL urlfile = null;HttpURLConnection httpUrl = null;BufferedInputStream bis = null;BufferedOutputStream bos = null;response.setHeader("Content-Disposition", "inline;filename="+ UUID.randomUUID().toString()+".pdf");//点击会提供对话框选择另存为：//response.setHeader( “Content-Disposition “, “attachment;filename= “+filename);//通过IE浏览器直接选择相关应用程序插件打开：//response.setHeader( “Content-Disposition “, “inline;filename= “+fliename)//下载前询问（是打开文件还是保存到计算机）//response.setHeader( “Content-Disposition “, “filename= “+filename);try{urlfile = new URL(remoteFilePath);httpUrl = (HttpURLConnection)urlfile.openConnection();httpUrl.connect();bis = new BufferedInputStream(httpUrl.getInputStream());bos = new BufferedOutputStream(response.getOutputStream());int len = 2048;byte[] b = new byte[len];while ((len = bis.read(b)) != -1){bos.write(b, 0, len);}bos.flush();bis.close();httpUrl.disconnect();}catch (Exception e){e.printStackTrace();}finally{try{bis.close();bos.close();}catch (IOException e){e.printStackTrace();}}}